• Journal of Multimedia Information System
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• v.3 no.3
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• pp.47-52
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• 2016

This research paper examines the usage of graphic imaging in Holographic Projections to further advance the medical field. It highlights the importance and necessity of this technology as well as avant-garde techniques applied in the process of displaying images in digital holography. This paper also discusses the different types of applications for holograms in society today. Different tools were utilized to transfer a set of a cancer patient's brain tumor data into data used to produce a 3D holographic image. This image was produced through the transfer of data from one program to another. Through the use of semi-automatic segmentation through the seed region method, we were able to create a 3D visualization from Computed Tomography (CT) data.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.8
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• pp.1811-1816
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• 2012

Black marker cause unnatural problems between the existing various contents and marker. To solve this problem, we tested frequency of 3D objects according to the various colors and color placement. Based on this, infant's learning content system based NyARToolkit for the mobile-based augmented reality was implemented. By insert to color marker, We are solved the unnatural problems in the Implemented system. and infant can study seamlessly because concentration increases by the familiar character on the markers.

• Proceedings of the KSR Conference
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• 2009.05a
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• pp.10-14
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• 2009

최근 건설 사업에서는 다양한 형태의 전산화 도구들을 현장에 적용하기 위한 노력이 진행 되고 있다. 그러나 철도시설과 같은 광역지역을 효율적으로 관리하기 위해서는 VR (Virtual Reality, 가상현실) 기술을 활용한 원격기반의 정보화 기법이 도입될 필요가 있다. 이를 위 본 연구에서는 VR과 Telepresence 기술을 통합한 실시간 현장 원격관리체계 구축 및 AR (Augmented Reality, 증강현실) 연동 방법론을 제안하며, 제시된 방법론의 실무 적용 성을 검토하고 있다. 이러한 가상건설지원 체계는 건설실무자와 시스템간의 실시간 상호작용을 가능하게 하며, 통합된 현장 진도 상황정보를 효율적으로 파악 할 수 있는 도구가 될 수 있을 것으로 기대된다.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.602-605
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• 2017

본 논문에서 우리는 최근 심각한 사회문제로 떠오르고 있는 '층간소음'을 공학기술과 접목하여 이를 저감 시킬 수 있는 방안을 제시한다. 현재 4차산업혁명시대를 맞이하여 인공지능, AR(Augmented Reality), VR(Virtual Reality), IOT(Internet Of Things), 빅 데이터(Big Data) 등이 등장하고 있다. 우리는 '층간소음' 저감효과를 이끌어 낼 수 있는 방안으로 아두이노를 활용해 홈 IOT와 결합한 형태를 제안한다. 우리는 먼저 기존의 '층간소음' 해결절차를 설명하고 이를 보완한 시스템을 설계하고 이를 구현한다. 우리는 본 논문에서 제시된 방안인 '아두이노를 이용한 홈 IOT 층간소음 측정 어플리케이션'을 통해 더 나은 주거 환경을 조성할 수 있을 것이라 기대한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2018.06a
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• pp.240-243
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• 2018

최근 VR(Virtual Reality)와 AR(Augmented Reality)의 발전에 따라 영상 또는 이미지에서 카메라와 물체 사이의 거리를 추정하는 기술에 대한 연구가 활발히 진행되고 있다. 본 논문에서는 카메라와 물체 사이의 거리 추정 방법 중에서 단일 카메라를 이용하여 촬영한 이미지의 흐림 정도를 분석하여 3D 거리를 추정하는 알고리즘을 연구한다. 특히 고가의 렌즈가 장착된 DSLR 카메라가 아닌 스마트폰 카메라 이미지에서 DFD를 이용한 거리 추정 방법 중 1개의 이미지를 이용한 3D 거리 추정 방법과 초점이 서로 다른 2개의 이미지를 결합하여 3D 거리를 추정하는 방법을 연구하고 최적회된 피사체 범위에 대해 연구하였다. 한 개의 이미지를 이용한 거리 추정에서는 카메라의 초점 거리를 200 mm로 설정할 때, 두 개의 이미지를 이용한 거리 추정에서는 두 이미지의 초점 거리를 각각 150 mm, 250 mm로 설정했을 때 가장 넓은 거리 추정 범위를 갖는다. 또한, 두 거리 추정 방법 모두 초점 거리가 가까울수록 가까운 물체의 거리 추정에 효율적인 것으로 나타났다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.938-939
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• 2023

코로나-19로 인해 비접촉 서비스의 중요성이 더욱 대두되고 있다. 키보드나 마우스와 같은 기존 입력 장치를 대체하기 위해 사람들은 디지털 기기에서 손을 사용하여 자연스럽고 간단한 입력을 할 수 있게 되었다. 본 논문에서는 미디어파이프(MediaPipe)와 LSTM(Long Short-Term Memory) 딥러닝을 활용하여 손 제스처를 학습하고 비접촉 입력 장치로 구현하는 방법을 제시한다. 이러한 기술은 가상현실(VR; Virtual Reality), 증강현실(AR; Augmented Reality), 메타버스, 키오스크 등에서 활용 가능성이 크다.

• International Journal of Advanced Culture Technology
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• v.11 no.4
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• pp.322-327
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• 2023

Recent advances in augmented reality (AR) and virtual reality (VR) technologies have led to a significant increase in metaverse platforms. Metaverses are setting a new direction for the digital world. This paper examines the phenomenon of virtual worlds that are becoming an issue these days, focusing on [Ready Player One]. One of the common features of the metaverse platform in [Ready Player One] and the platforms currently in use is the concept of open world. This is a feature that goes beyond simply moving around in a virtual world and allows users to freely reset, participate in, and control the environment. This innovative concept is a hallmark of metaverse platforms, and it is becoming increasingly important and influential. Through this study, we focused on the [open world system] of the platform in the movie and the modern metaverse platform, and suggested and studied how the scalability of the metaverse will present a turning point in the future.

• International Journal of Internet, Broadcasting and Communication
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• v.16 no.3
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• pp.77-84
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• 2024

Aberration is still a problem for making augmented reality displays. The existing methods to solve this problem are either slow and inefficient, consume too much battery, or are too complex for straightforward implementation. There are still some problems with image quality, and users may suffer from eye strain and headaches because the images provided to each eye lack accuracy, causing the brain to receive mismatched cues between the vergence and accommodation of the eyes. In this paper, we implemented a computer simulation of an optical aberration using Zernike polynomials which are defocus, trefoil, coma, and spherical. The research showed that these optical aberrations impact the Point Spread Function (PSF) and Modulation Transfer Function (MTF). We employed the phase conjugate technique to mitigate aberrations. The findings revealed that the most significant impact on the PSF and MTF comes from the influence of spherical aberration and coma aberration.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.571-572
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• 2022

Recently, VR/AR(virtual reality/augmented reality) contents have actively increased, and various services related to VR/AR allow users to experience remote places. Also, Metaverse technologies based on VR/AR generally used to provide content in virtual spaces. In this paper, we present a technique for synthesizing virtual humans after capturing a 360-degree panorama of a remote environment, and analyze the remote environment to identify the location where it can be captured without error, and apply a method of synthesizing virtual humans. According to this paper, it is possible to provide various captured spaces such as industrial plants, medical facilities, and schools as remote communication media.

• Journal of Korean Society for Quality Management
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• v.49 no.3
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• pp.405-420
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• 2021

Purpose: This study started with the question of how to use Virtual Reality (VR) contents as a part of the non-face-to-face education tool that has recently attracted attention. Methods: In this paper, the use of VR contents as an educational tool is explained as a process of 'new media access dimension'. The question was explored on why Virtual Reality (or Augmented Reality) contents are not used as educational tools in the educational field. Results: As a result, the lack of 'material access' such as devices and infrastructure affects 'motivational access' approach stage, which is the previous stage. Again, it has a negative effect on literacy, which is 'skill access' approach stage. As it was found that it was not circulating to the level of "motive-material-skill-usage", it was discussed that it was taking a different step from the past adoption process of ICT and smart media. Conclusion: Based on this, it is believed that immersive content will contribute to arousing interest that can be applied and spread in the educational field, and it is also thought that it will be possible to derive academic interest in the educational effect according to the characteristics of immersive content such as VR.